AnalyzerSentence analysis8SpansSentence順序数は集合論で重要な概念です。1000 character limitAnalyzeSentence順じゅん序じょ数すうは集しゅう合ごう論ろんで重じゅう要ような概がい念ねんです。Span Details順じゅん序じょ数すうordinal numbernounはtopic markergrammar集しゅう合ごう論ろんset theorynounでlocation, means, or scope markergrammar重じゅう要ようimportant; essential; significantna-adjectiveなadnominal form of the copula after a na-adjectivegrammar概がい念ねんconcept; notion; general ideanounです。be; is; arecopula, auxiliary出洲ですspit of land; sandspit